Adelstein, who plays Dr. Cooper Freedman on the ABC medical drama, will direct Episode 18, which will feature guest-star and ERalum, Alex Kingston. The episode is slated to air March 31, the same day as the Grey's Anatomymusical episode.

"I'm honored and excited to direct Private Practice," Adelstein tells TVGuide.com "My challenge, of course, will be shepherding some inexperienced actors Taye Diggs, Amy Brenneman, and Tim Daly, and bringing them up to par. I think I'm up to the challenge and will at least give it a try."